TABLE OF CONTENTS
The warnings, cautions and instructions dis-
cussed in this instruction manual cannot
cover all possible conditions or situations that
could occur. It must be understood by the
operator that common sense and caution are
factors which cannot be built into this prod-
uct, but must be supplied by the operator.
Reading this operator’s manual before using
the welder will enable you to do a better,
safer job. Learn the welder’s applications and
limitations as well as the specific potential
hazards peculiar to welding.
IMPORTANT SAFETY INFORMATION
The following safety information is provided
as guidelines to help you operate your new
welder under the safest possible conditions.
Any equipment that uses electrical power
can be potentially dangerous to use when
safety or safe handling instructions are not
known or not followed. The following safety
information is provided to give the user the
information necessary for safe use and oper-
ation.
A procedure step preceded by a
WARNING
is an indication that the next step contains a
procedure that might be injurious to a person
if proper safety precautions are not heeded.
A procedure preceded by a
CAUTION
is an
indication that the next step contains a pro-
cedure that might damage the equipment
being used.
A
NOTE
may be used before or after a pro-
cedure step to highlight or explain something
in that step.
READ ALL SAFETY INSTRUCTIONS
CAREFULLY
before attempting to install,
operate, or service this welder. Failure to
comply with these instructions could result in
personal injury and/or property damage.
RETAIN THESE INSTRUCTIONS FOR
FUTURE REFERENCE.
Note:
• The following safety alert symbols
identify important safety messages in this
manual.
• When you see one of the symbols shown
here, be alert to the possibility of person-
al injury and carefully read the message
that follows.
This symbol indicates that the
possibility of electric shock hazard
exists during the operation of the
step(s) that follow.
This symbol indicates that the
possibility of fire hazard exists
during the operation of the step(s)
that follow.
This symbol indicates that the
helmet must be worn during the
step(s) that follow to protect
against eye damage and burns
due to flash hazard.
This symbol indicates that the
possibility of toxic gas hazard
exists during operation of the
step(s) that follow.
This symbol indicates that the
possibility of being burned by hot
slag exists during operation of the
step(s) that follow.
This symbol indicates that the
eye protection should be worn to
protect against flying debris in the
following step(s).
• Published standards on safety are
available. They are listed in ADDITIONAL
SAFETY INFORMATION at the end of
this SAFETY SUMMARY.
The National Electrical Code, Occupation
Safety and Health Act regulations, local
industrial codes and local inspection require-
ments also provide a basis for equipment
installation, use, and service.
SAFETY SUMMARY
3
Summary of Contents for MMIG125
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